Download ATD-5540 AUTOMOTIVE MULTIMETER
Transcript
INSTRUCTION MANUAL Contents ATD-5540 AUTOMOTIVE MULTIMETER INSTRUCTIONS -1 Safety 1 Meter Basics 4 Meter Functions 4 Voltage(V) ………………………………………………… 6 Resistance( Ω ) 7 Diode Check( ) 8 Audible Continuity( ) 9 DC Current(A) 10 RPM( ) 11 Frequency(Freq) 12 Dwell( ) 13 Duty Cycle(%) 14 Maintenance 15 Fuse and Battery Replacement 15 Trouble Shooting 16 General Specifications 16 Electrical Specifications Warranty Information 17 0 20 Safety Cont ’d… Safety DANGER Danger Engines produce carbon monoxide which is odorless, causes slower reaction time, and can lead to serious injury. When the engine is operating, keep service areas WELL VENTILATED or attach the vehicle exhaust system to the shop exhaust removal system. Set the parking brake and block the wheels before testing or repairing the vehicle. It is especially important to block the wheels on front-wheel drive vehicles; the parking brake does not hold the drive wheels. Wear an eye shield when testing or repair-ing vehicles. Exceeding the limits of this meter is dangerous. lt will expose you to serious or possibly fatal injury. Carefully read and understand the cautions and the specification limits of this meter. Voltage between any terminal and ground must not exceed 600V DC or 600V AC. Use caution when measuring voltage above 25V DC or 25V AC. Circuit tested must be protected by a 10A fuse or circuit breaker. Do not use the meter if it has been damaged. Avoid electrical shock: do not touch the test leads, tips or the circuit being tested. Do not try a voltage measurement with the test leads in the 10A or the mA terminal. When testing for the presence of voltage or current, make sure the meter is functioning correctly. Take a reading of a known voltage or current before accepting a zero reading. Choose the proper range and function for the measurement. Do not try voltage or current measurements that may exceed the ratings marked on the Function/Range switch or terminal. When measuring current,connect the meter in series with the load. Never connect more than one set of test leads to the meter. Disconnect the live test lead before disconnecting the common test lead. The mA and the 10A terminals are protected by fuses. To avoid possible injury or damage, use only in circuits limited to DC 10A for 60 seconds. See also… Fuse Replacement Do not use the test leads if the insulation is damaged or if metal is exposed. 1 2 Safety Cont’d… Meter Basics IMPORTANT To maintain accuracy of the meter, replace the discharged battery immediately when the battery symbol appears on the meter display. 1. Display: Large 3 1/2 digit (1999 counts) LCD display with low battery Avoid measuring error from outside interference: keep the meter away from spark plug or coil wires. Avoid damaging the meter when testing voltage: disconnect the test leads from the test points before changing functions. Do not exceed the limits shown in the table below: FUNCTION Terminal Input limit DC Volts VHzΩ 600 Volts DC Frequency ① Ohm(resistance) 500 Volts AC/DC VHzΩ Diode DC 10A 250 Volts AC/DC 10A *10A AC/DC VHzΩ 500 Volts AC/DC indication. 2. Rotary Selector Switch: Turn this switch to Select a function or turn the meter OFF. 3. Test Lead Terminals: The Black test is used in the common(COM) terminal for all rests. The Red test Lead is used to measure Amp or Volts. RPM Duty Cycle(%) Dwell angle ★ 10 Amp measurement for 60 seconds maximum. ① Ohms can not be measured if voltage is present, ohms can be measured only in a non-powered circuit. However, the meter is protected to 250 volts 3 4 Meter Functions-Voltage (DCV) The meter will automatically select the best voltage (V) range. Insert: Black lead in COM terminal. Red lead in V-Ω-RPM terminal Touch the Black probe to ground or to the negative (-) circuit. Touch the Red probe to the circuit coming from the power source IMPORTANT: voltage must be measured in parallel (Red probe measuring circuit from power source). Accuracy Selection of a lower range will move the decimal point one place and increase the accuracy. An “I” display means the range is too low,select the next higher range. WARNING When measuring voltage,be sure the Red test lead is in the terminal marked “V”.If the test lead is in an Amp (A)or Milliampere (mA) terminal, you may be injured or the meter damaged. 5 6 Meter Functions – Resistance (Ω) IMPORTANT:If you are testing an application that has capacitors in the circuit, be sure to turn the power OFF on the test circuit and discharge all capacitors. Accurate measurement is not possible if external or residual voltage is present. Select the resistance( Ω ) range with the rotary switch. Insert: Black lead in COM terminal. Red lead in V-Ω-RPM terminal. Touch the test lead probes across the resistor to be tested. Meter Functions – Diode Check ( IMPORTANT: Turn the power OFF to the test circuit Select the Diode Check ( ) setting with the rotary switch. Insert: Black lead in COM terminal. Red lead in V-Ω-RPM terminal. Touch the Black test probe to the negative (-) side of the diode. Touch the Red test probe to the positive (+) side of the diode. Reverse the probes : Black to the positive (+) side and Red to the negative (-) side. Note: A 〃 good 〃 diode will read low in one direction and high in the other direction when the probes are reversed (or vice versa). A defective diode will have the same reading in both directions or read between 1.0 to 3.0V. in both directions Diode Good Bad 7 .4 to .9V Reverse Probes + to OL OL .4 to .9V OL 1.0 to .4 to .9V OL .000V OL .4 to .9V OL .000V - to + 1.0 to 3.0V 8 ) Meter Functions – Audible Continuity ( ) Meter Functions DC Current (A) IMPORTANT : All current measured flows through the meter. It is important that you do not: Measure current greater than 600 Volts AC or DC, with respect to ground. Exceed 60 seconds when measuring continuous current between 1A-10A. Allow five minutes for cool down before continuing. IMPORTANT: Turn the power OFF on the test circuit Select the Audible Continuity ( ) range with the rotary switch. Insert: Select the 10A range with the rotary switch. Black lead in COM terminal. Red lead in V -Ω- RPM Insert: Black lead in COM terminal. Red lead in the 10A terminal terminal. Connect one test probe to each end of the circuit to be tested. Circuit complete, the meter will beep continuously. Circuit open, there is no beep and the display shows to “ I ” (over limit) IMPORTANT: Turn OFF all power to the circuit or disconnect the circuit from the power source. Connect: The Red probe to the side of the circuit closest to the power source. The Black probe to the side of the circuit to ground. Turn the power ON and test. 9 Note: Current - must always be measured with the meter test probes connected in series, as described. 10 Meter Functions-RPM/x10RPM Select the RPM range with the rotary switch. or Select the x 10RPM range with the rotary switch (1,000 to 12,000 RPM). Multiply the displayed reading times by ten to get actual RPM. Insert the inductive pickup connecting terminal into the meter. Ground lead in COM terminal. Meter Functions-Frequency(Hz) Select the Frequency(Freq) setting with the rotary switch. Set the rotary switch to the Frequency range that gives the most accurate measurement reading. Insert: Black lead in COM terminal. Output lead in V -Ω- RPM terminal. Connect the inductive pickup to a spark plug wire. lf no reading is received, unhook the clamp, turn it over and connect again. Note: ·Position the inductive pick-up as far away from the distributor and the exhaust manifold as possible. · Position the inductive pick-up to within six inches of the spark plug or move it to another plug wire if no reading or an erratic reading is received. 11 Red lead in V-Ω-RPM terminal. Connect the Black test probe to ground. Connect the Red test probe to the ”signal out” wire of the sensor to be tested. 12 Meter Functions-Dwell Select the proper Dwell range with the rotary switch. Meter Functions-Duty Cycle (%) Insert: Select the % Duty Cycle range with the rotary switch. ·Black lead in COM terminal. Insert: ·Red lead in V-Ω-RPM terminal. Connect the Black test probe to ground. ·Black lead in COM terminal. ·Red lead in V-Ω-RPM terminal. Connect the Red test probe to the wire that connects to the breaker points(see illustration). Connect the Black test probe to ground. Connect the Red test probe to signal wire circuit. the The illustration for a mixture control solenoid is shown with the metering rod in the closed position. The meter will display the percentage of time the plunger is in the closed position (low duty cycle) during one duty cycle. 13 14 Maintenance Trouble Shooting Fuse and Battery Replacement 1. Meter wilI not turn ON. Check the battery contacts for a tight fit. Check for a minimum battery voltage of 8.0 volts. WARNING: Avoid electrical shock: remove test leads before opening case. Do not operate the meter or rotate the meter switch when the case is open. 1. To replace a battery or fuse, loosen the three screws in the case back and remove the case by lifting up and forward . 2. Replace the battery with an 9 Volt alkaline battery. Important: To prevent contamination of the circuits, your hands must be clean and the printed circuit board must be held by the edges. Replace the fuses with the same type of fuse. 10 A is a F 10 A ,250V high energy, fast acting fuse. Make sure the replacement fuse is centered in the fuse holder. 3.Re-assemble the case. Fasten the three screws. 2. Ampere reading is erratic or there is no reading at all. Disassemble the meter back cover and test the fuses for continuity. 3. Meter reading is erratic. Printed circuit board contaminated from handling with hands. Low battery. Open circuit in a test lead (frayed or broken wire). Wrong range selected. “Blown” fuse. General Specifications GENERAL SPECIFICATIONS Display : 3 1/2digit(1999 counts)liquid crystal display(LCD) Polarity : Automatic,(-)negative polarity indication. Overrange lndication :“1” mark indication. Low Battery lndication: The is displayed when the battery voltage drops below the operating level. Measurement Rate :2 times per second ,nominal. Operating Environment : 0℃to 50℃ (320 0F to 122 0F) 15 16 at<70% R.H. Storage Environment : -20℃to 60℃ (-4 0F to140 0F ) at<80%R.H Temperature Coefficient : 0.2×(specified accuracy ) / ℃ ( < 18 ℃ or > 28℃ ). Power : Single standard 9 Volt battery (NEDA 1604 or lEC6F22). Battery Life : 200 hours typical with alkaline battery. Fuse : 10A/600V,6.3×25mm fast acting ceramic type. Dimensions : 147mm(H)×70mm(W)×39mm(D). Weight : Approx.222g(Meter Only),355g(With Holster). %DUTY CYCLE Ranges:1.0%-90.0% Resolution:0.1% Pulse width:>100us,<100ms Accuracy:±(2.0%rdg+5dgts) Overload protection: 500VDC or RMS AC DWELL ANGLE No.of cylinders:3,4,5,6,8 Ranges:0-120.00(3CYL),0-90.00(4CYL),0-72.00(5CYL), 0-60.00(6CYL),0-45.00(8CYL) Resolution:0.1 Accuracy:±(2.0%rdg+5dgts) Overload protection: 500VDC or RMS AC Electrical Specifications ELECTRICAL SPECIFICATIONS* Accuracy is given as±([%of reading]+[number of least significant digits])at 180C to 280C(650F to 830F),with relative humidity up to 70%. RPM(Tach) Ranges:600-2000, 6000-12000(x10RPM) Resolution:1 RPM Effect Reading:>600RPM Accuracy:±(2%rdg+4 dgts) Overload protection:500VDC or RMS AC DC VOLTAGE Ranges : 200mV, 2V, 20V, 200V, 600V Resolution :100μV Accuracy :±(0.5%rdg+1dgt)on 200mV ±(0.8%rdg+1dgt) 2V to 600V ranges Input impedence :10MΩ Overload protection:600VDC or AC rms. DC CURRENT Ranges:10A Resolution:10mA Accuracy:±(3.0%rdg+3dgts) 17 18 Input protection:10A/250V fast acting ceramic fuse on 10A input RESISTANCE Ranges : 200Ω, 2KΩ, 20KΩ, 2MΩ, 20MΩ AUDIBLE CONTINUITY Audible threshold : Less than 50Ω Resolution:100mΩ Overload protection:250VDC or RMS AC Resolution : 100m Accuracy :±(0.8%rdg+3dgts) on 200Ω ±(0.8%rdg+2dgts) on 2KΩ to 2MΩ ranges ±(1.5%rdg+5dgts) on 20MΩ ranges Overload protection:250VDC or RMS AC FREQUENCY Ranges : 200Hz, 2000Hz, 20KHz Resolution : 0.1Hz Accuracy :±(1.0%rdg+4dgts) on all ranges Sensitivity : 3.5V RMS min. at>20% and <80% duty cycle Effect Reading : More than 100 digits at pulse width>2μ Sec Overload protection : 500 VDC or RMS AC DIODE TEST Test current : 0.6mA typical(Vf=0.6V) Resolution :1mV Accuracy :±(10%rdg+3dgts) Open circuit voltage : 3.0Vdc typical Overload protection : 250VDC or RMS AC Warranty Information This product is warranted to be free from defects for one year. If this product fails during the first 12 months due to faulty materials or workmanship, it will be replaced free of charge, at the discretion of the manufacturer. NOTE: This one year warranty does not cover dead batteries and blown fuses. For warranty and service coverage, please return this product to your dealer for processing and evaluation. OR, return it directly to: Electronic Specialties, Inc. 139 Elizabeth Ln. Genoa City, WI 53128 262-279-1400 WWW.ESITEST.COM Defective units being returned to your dealer or to the factory should include proof of purchase date. Any testers that do not function due to misuse or abuse will be subject to “out of warranty service charges.” 19 20